Teat-cup.



TEAT CUP.

APPLICATION F1LED1uN|2.1911.

Patented Dec. 10, i918.

i UNITED CLYDE oDEN Armenian e, minuntos.

@are

. ALL

F COLUMBUS, OHIO, ASSIGNORS T0 Til-.lli

' 'rear-enr.

Application filed June l2,

To all wlw/n. z'z may concern.'

Be it known that we, (Hi-Yon (inns and JOHN (l. (l. EKLUNDH, citizen otthe United 'States and subject of the King. ot' Sweden,

respectively, residingat olun'ibus` in the county of Franklin and Stateof Ohio,` have invented certain new and use ments in Tem-Cups, of whichthe following is a specification.

My invention relates tomilking apparatus and more particularly to teatcups therefor of the intermittently inflated 'orvv pulsating type.

The object of the invention is to improve the structure as well as themeans and inode ofoperation of suoli devices whereby they .will notonly-be cheapened in construction,

but'wilt be more eflicientin use, positive in operatioinimiform inaction, and lfunlikely to get out of repair. l "A furtherobject of theinvention is to pr0-l vide a teat cup whichfwill be universal in itsapplication to'- teats of varying lengths and dian'ieters, whereby) thesaine cup may be used. for different cows Aregardlessof the relativesize ot' the teats. JA further object of the invention is to provide aleXible lining or filler which will be uniforpi in its operationcontracting substantially uniforn'lly throughout the periphery, andwhich will be unlikelY to crack v or split under the influence ot'continued vibratory movement.

A further object of the invention is to provide a flexible lining orfiller in which the -tendency to wrinkle tra'nsversel)Y will be ob'viated, and the uli-uniform distortion under .varying internal'and.external pressure will be reduced to minimum. 'A further object of theinvention, but by nomeans of less importance, is 'to provide` improvedmeans for connecting the filler or lining with the housing.

'Vith the above primary andv other ineidental objects in view as willmore fully appear in the specification, the invention consists of thefeatures of construction, the parts and combinations thereof, and the.inode of'operation or their equivalents, as hereinafter described andset forth in the claims.

Sp'ecicaton 'of Letters Extent.

ful improve atented Hee.. liti, iliit 1917. serial No. 174.2161

. Referring` to the drawings Figure l is perspective view of theassembled teat cu forming the subject matter hereof. Fig'. islongitudinal vertical sectional view thereof. Fie: is a side elevationol"l the tiexible lining` er filler ren'ioved from the housing'. Figi lis a transverse secional view on line iw-'t ot'v Fig. 2- lookingdownware.

Like parts aet'ers o' views.. V

rlhe tea't cup Jforming' the subject` matter hereofis ot'V that type inwhich a vacuum or suction is constantly maintained upon the interior orthe flexible lining comprising the suction cliainber'and upon the teatcontained therein, initted'l and exhausted from the housing 'about theexterior of said i'lexible lining or filler causingthe liningalternatelvto eontract and expand or vibrate. The pulsation oralternation of the expansion and con raes tion oi the lining' or thetller occurs in rapid succession, usually varying approximately fromforty-eight tosixty times per minute. and atl'ords a massaging' actionupon the tcat which tends not only to induce and actalen ate the 'tlowot milk but also 'to return upwart ly to the udder the blood drawn intothe teat b v the. suction or vacuum action thereinY avoiding`congestion.

terrine to the drawings, tbe forming" the subject. matter hereof acylindrical housingtapering solnevfiat at its lower end and about itsupper edge an externallyr threaded collar or Sangre are indicated bysimilar cha te; 1 cup is 'irovidedt rlhe terminal face of the colla ortiange'Q contains a groove or recess 3 The housing;- l, is also providedat its lower or smaller end with a similar serew-tln'eadetl rollar iland in its terminal tace a shallow concentric Aafroove or rhannel 5.

' Comniunicatinewith the interior ot' the housing` l ,is a branchconduit or extended nipple which is connected through a pulsator orother variable control4 means with a suitable suction device or vacuumpump. The pulsator or air control means alternately v'opensi'he ronduit(i to atmosphere. and closes .it against atmosphere and opens referencethroughout. the several while air is alternately ad action of thesuction device of the The influence of' the latter of the tiexible it tothe vacuum. pump. is extended to the exterior lining or filler-.toeffect the pulsating action.

It is to be understood however that the teat vcup forming they-subjectmatter hereof is not -l1`mitcd to use with any particular pulsator,

but may be employed in conjunction with various pulsators anti controlmeans for alshown in Figs. 2 and 3, this tubular body 7 its lower end tofitis of continuc'un,` or uniformlytapered or conical form throughoutthe greater portion ofits length. In the drawing the tapered form hasbeen shown slightly contracted at the housing as indicated at 8. At eachend the tubular body 7 is formed with an external peripheral flange orcollar 9.and 10 which extend beyond the ends of the main housing 1 andoverhanging the screw threaded collars 2 and 4. The tubular portion of'the filler intermediate the flanges 9 and r10 is substantially equal inlength to the length of the housing 1 whereby the eX- ternal terminalflanges ot' the lining or filler an internal form or mandrel during theprocwill be caused to seat firmly upon the ter# minal faces of 'thehousing. -The lining flanges 9 and 10 are preferably though notnecessarily provided upon their inner or adjacent faces with concentricbeads 11 and 12 to be seated within concentric. grooves or channels 3and 5. While approximately accui'ilte proportions of the lining andhousing are to be desired. neither slight excess or de.- ficiency inlength will defeat thc operation opurpose. of the lining. inasmuch asAany variation of the size within reasonable )limit will be compensatedfor by the elasticity and flexibility of the tubular lining or fillerbody. lt is to be noted that the contract-ion of the filler body beforementioned which is com paratively slight, occurs at the point where thetapered filler or lining meets the interior wall of the housing 'at itslower end and such contraction insures a perfect contact or fit of thelining or the housing. be noted that the effective length of the tubularconical lining or the filler is substantially uniformly taperedthroughout. lt extends in a straight line from its point of contact withthe housing at one end to its point filler in the inner end ot yreferencerto Fig. 2 it will ess of manufacture. This construction not.only enafbles the linings or llersto be more economically manufactured,but it enables the manufacture of a lining or filler having greaterdurability and strength, less likely to split or crack while in use andpossessing less tendency to wrinkle or crease either transversely orvertically. The vspiral wrapping of the lining or filler materialaboutthe mandrel or form during process yof manufact-ure distributes thestresses and strains to which it is subjected in operation moreuniformly throughout the lining body. It tends -to distribute the lgrainof the material, or

strands of the reinforcement if employed, in directions transveisely tothe usuabhnes of cleavage or breakage, thereby increasing the life anddurability of the fiexible lining or filler body.

As before stated it is desirable that the lining or filler body beaccurately pro ortioned to thehousing whereby 'it wil be maintained ina. state of neutral suspension, neither subjected to a stretchingtension nor possessing undue degree ot' slack or excess of material. Itwill be understood however that after long periods of' use the filler orlining may accumulate some slack incident to the stretching ofthematerial while in operation. y

In assembling the device the small end of the filler or lining isintroduced into the housing 1. and passed through the central orifice inthc smaller end of thebhousing. The passage of the 'fiange 10 throughthe opening is facilitated by the use of-a special instrument insertedthrough said opening or more conveniently b v means of a string whichmay be looped or otherwise en ged about the filler inuuediately abovethe iinge l() by which the flange may drawn through the opening afterwhich the string is disengaged.

ln the adjusted position of the filler or lining 7 the flanges 9 and 10thereof engage upon the terminal faces of the housing 1 with the beads11 and 12. if such beads are provided. grooves or channels of the liningor and the flange 9 thereof is placed under compression to hermetiIa-lly sealy the variseated within the concentric :t and 5. The upperend filler is secured in position'- able pressure chamber 13`surrounding the f msn-404,

flaiig,y and having a central orifice l5 for' 'the reception oithe tcat.This compression "a il bears upon the external flange 9 of r groove orchannel At its lower e'ller is similarly engaged with'the' i .ng hymeans ois an internally threaded (i0 i ie terninal thereby f onipressedinto the annular groove la oi' the housing l., ind bears upon'the iilangc 1C' of the filler which is or channel o et the housing. Thecap'or compression head 16 carries an' integral vnipple or conduit l?having a which ci'iiiiniunicates with lining or filler Y tionrl'iainber. i l.

ln practice this. nipple 1lfifffiiaconnected.by 'a'. i ole conduitwith-the pail or milk receiver which in turn Connected with the suctiondevice or which comprises the sucgrasped and turned on account of theprox; iinity et the conduit 6 this compression cap may be provided 4witha hexagonal boss or collar li? or one oi the other polygonal shape forengagement 'of a wrench or spannen llhereas it l as been heretoforecustomary to. 'term the flexible filler or lining of tcat cima ot thischaracter substantially cylindrical throughout the major portion oftheir length lower ends, whereby the teat operated upon normally hangsloosely within the filler or ,lining and out ot Contact withthe.flexible walls iereof, it has been found in practice that thecontinuous; tapered form of the iier or liningas herein shown anddescribed, affords greater etl'ieiency. In the use of the prese-nt formofdevice the pendfr`" 't :i normally contacts the lexible walls wherehjiere is less lost' motion in the vilira-tion of li bj d to a continuousmassaging action i'ougiiout the entire ope-ration. 4'It has been foundin practice. that cowsgenerally recognized as hard inilkers Arespondmore generously to the tapered filler or lining forming do 'to theordinary cylindricallining heretofore commonly used, Not only is the refspoi more prompt and generous but it has been -iound that with 'theusebf the' contin- `y tapered filler-or lin ng as herein de- Y iidstrippi:iiga.y r

h-econiesunnecws try.

aiioie description it ivillbe ap'- i t there is thus provided a deviceharacter described, possessirgfthe 'r oiladvantage v before t cup Freniet modidcation in its form, .tail nstruction or ing or vtiller andpresses it within the o which the external threaded central boreinterior of the- '1.... A-teat cup 'for milking prisinga/rigid tubularhousing having a reduced orice at one of its ends and eX-- vacuum pump.Inasmuch *tci'n'ally screw threaded .at both its ends.- a as compressioncap 16 may not be'rea'dilythrough said housing,

and abruptly contracted at thein iler or lining, the teatbeing' thesubject mattcrhereof than they the use of this desirable but whichobviously l housing. arrangementv of parte, without departing from the lany of its principle involved or sacrificing advantages.l 'v

l,Vhile in order to comply with the'statutes, the Ainvention has beendescribed in language'more or less specific as to certain structurallfeatures, it is to be understood that the invention is not limited toany speciic details, but that the.. means and construction'hcreindescribed comprise but one mode of putting the-.invention into effec-t,and the invention is ltherefore claimed broadly in anyof its possibleforms or modications Within `the scope of the appended claims. j

Having thus described our invent-ion, what we claini is apparatus connin said housing having a substantiallystraight uniform taper from theupperend of saidriller toitspoint of engagement with the contracted endot thehousing, and means -for securing said filler in position.

3. A teatcup 'for milking apparatus corn-v prising a tubular. housing, atubular filler Within the housing, walls of said tubular lfiller beingextended spi rally tl'i'roughout.the lengthof the filler,

and nicans for connecting;r the filler to the el. .A 'tea't cup formilking apparatus including'a housing, and a flexible filler within saidhousing formed by wrapping filler materia] spirally around a mandrel anduniting said wrappings one with thej other, and means for engaging thefil-ler with the hous- 'Ai tea-t cup for milking apparatus. rom prisingatubular housing having a. reduced orifice at one end thereon'. a tubularfiller withinv the housing otsubstantially uui- -.i'oriiily taperedshape having a neck portion to engage in the radi-iced orifice oi thehousing, external marginal tlaiiges positie ends"oi' said filler, andengaging said terminal at opilanges with the i. A tcat cup tor niilkin(rapparatus com? means for.

the materialforining the prising a tubular housing, screw threadedcollar and the endof the housing, and the et its opposlte endsfn screwthreaded inother is clmnped between the cap und the ternnliy flangedcollar fitted to one end of other end of the housing.

said housing, an .internally screw threaded In testimony whereof. wehave hereunto 5 cap having an integral nipple projecting Set our handsthis 7th dayof June. 1917. 15

therefrom fitted to the opposite end of the t CLYDIC ODFN. housing, andu fiexible tubular filler within JOHN (i. L. EKLUND'H.' the housing, npernmnently formed perph- 7itnessesz eral Hnnge :it euch end of theiller, one of H. J. (')SSING7 10 which is clamped between the flange ofsaid Gnomi Voir.

